Overview
The AD7892BR-3 is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is part of the AD7892 series, which is known for its versatility and performance in various applications. The AD7892BR-3 operates from a single +5 V supply, making it ideal for low power and portable applications. It features a successive approximation ADC, an on-chip track/hold amplifier, and an internal +2.5 V reference, along with versatile interface structures for both serial and parallel connections to microprocessors, microcontrollers, and digital signal processors.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate | 600 kSPS |
| Number of Inputs | 2 |
| Input Type | Single Ended |
| Data Interface | SPI, Parallel |
| Configuration | S/H-ADC |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | +5 V |
| Voltage - Supply, Digital | +5 V |
| Operating Temperature | -40°C to +85°C |
| Package | 24-SOIC (0.295", 7.50mm Width) |
| Conversion Time | 1.47 µs |
| Track/Hold Acquisition Time | 200 ns |
Key Features
- High-Speed Conversion: The AD7892BR-3 features a conversion time of 1.47 µs and a track/hold acquisition time of 200 ns, allowing for a throughput rate of up to 600 kSPS.
- Low Power Consumption: It operates from a single +5 V supply and consumes 60 mW typically, making it suitable for low power and portable applications.
- Flexible Interface: The component offers both serial and parallel interfaces, facilitating easy connection to microprocessors, microcontrollers, and digital signal processors.
- On-Chip Reference and Track/Hold Amplifier: It includes an internal +2.5 V reference and an on-chip track/hold amplifier, enhancing its functionality and reducing external component requirements.
- Overvoltage Protection: The AD7892BR-3 provides overvoltage protection on the analog inputs, allowing input voltages to exceed the specified range without damaging the device.
Applications
The AD7892BR-3 is versatile and can be used in a variety of applications, including:
- Portable and Battery-Powered Devices: Due to its low power consumption, it is ideal for use in portable and battery-powered devices.
- Data Acquisition Systems: Its high-speed conversion and flexible interface make it suitable for data acquisition systems requiring rapid and accurate analog-to-digital conversion.
- Industrial Control Systems: The component's robust design and operating temperature range make it suitable for industrial control systems.
- Medical Devices: Its precision and reliability make it a candidate for use in medical devices that require accurate analog-to-digital conversion.
Q & A
- What is the resolution of the AD7892BR-3 ADC?
The AD7892BR-3 is a 12-bit analog-to-digital converter.
- What is the maximum sampling rate of the AD7892BR-3?
The maximum sampling rate is 600 kSPS.
- What type of supply voltage does the AD7892BR-3 require?
The AD7892BR-3 operates from a single +5 V supply.
- What is the typical power consumption of the AD7892BR-3?
The typical power consumption is 60 mW.
- Does the AD7892BR-3 have overvoltage protection on its analog inputs?
- What types of interfaces does the AD7892BR-3 support?
The AD7892BR-3 supports both serial (SPI) and parallel interfaces.
- What is the operating temperature range of the AD7892BR-3?
The operating temperature range is -40°C to +85°C.
- What is the package type of the AD7892BR-3?
The AD7892BR-3 is available in a 24-SOIC package.
- Is the AD7892BR-3 still in production?
- What are some common applications for the AD7892BR-3?
